Related Experiment Videos
[Pressure versus volume constant ventilation in chronic ventilatory insufficiency]
M Sonneborn1, B Schönhofer, P Haidl
1Krankenhaus Kloster Grafschaft, Zentrum für Pneumologie, Beatmungs- und Schlafmedizin, Schmallenberg-Grafschaft.
Medizinische Klinik (Munich, Germany : 1983)
|April 28, 1997
Summary
Pressure constant ventilation (PCV) is a viable alternative to volume controlled intermittent positive pressure ventilation (IPPV) for chronic respiratory failure (CRF) in about 60% of patients. However, PCV may be inadequate for those with more severe CRF at baseline.
Area of Science:
- Pulmonary Medicine
- Respiratory Therapy
Context:
- Chronic respiratory failure (CRF) management often involves mechanical ventilation.
- Volume controlled intermittent positive pressure ventilation (IPPV) is a standard treatment for CRF.
- Pressure support ventilation (PSV) is a newer modality for CRF.
Purpose:
- To evaluate pressure constant ventilation (PCV) as a long-term alternative to IPPV for CRF patients.
- To compare the efficacy and patient acceptance of PCV versus IPPV via face mask.
Summary:
- 30 CRF patients were studied, comparing IPPV and PCV over several months.
- 28 patients showed improvement with either IPPV or PCV.
- 18 patients successfully transitioned to PCV, while 10 were PCV-nonresponders, particularly those with higher baseline hypercapnia and desaturation.
Impact:
- PCV is an effective alternative to IPPV for approximately 60% of CRF patients.
- PCV may be insufficient for patients with severe CRF characterized by significant hypercapnia and oxygen desaturation at baseline.
- This study informs clinical decisions regarding ventilation strategies for CRF.